Myofibril- A long filamentous organelle found within muscle cells that has a banded appearance -Thin Myofilaments- actin protien -Thick Myoilaments- myosin protien
Sarcolema- outer surface of a muscle cell
Sarcomere- functional unit of a muscle cell
Sarcoplasmic Reticulum- storage site of calcium ions in a muscle cell
Z-disc- zones that seperate sarcomere A-band- in a sarcomere made up mostly of thick myofilaments I-band-only composed of thin myofilament
H-zone-area of the A-band that only contains thick myofilaments
Myofibril- A long filamentous organelle found within muscle cells that has a banded appearance
-Thin Myofilaments- actin protien
-Thick Myoilaments- myosin protien
Sarcolema- outer surface of a muscle cell
Sarcomere- functional unit of a muscle cell
Sarcoplasmic Reticulum- storage site of calcium ions in a muscle cell
Z-disc- zones that seperate sarcomere
A-band- in a sarcomere made up mostly of thick myofilaments
I-band-only composed of thin myofilament
H-zone-area of the A-band that only contains thick myofilaments